1 files changed, 48 insertions, 0 deletions
diff --git a/examples/python/metadata/metadata_client.py b/examples/python/metadata/metadata_client.py
new file mode 100644
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+++ b/examples/python/metadata/metadata_client.py
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+# Copyright 2018 The gRPC Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Example gRPC client that gets/sets metadata (HTTP2 headers)"""
+
+from __future__ import print_function
+import logging
+
+import grpc
+
+import helloworld_pb2
+import helloworld_pb2_grpc
+
+
+def run():
+    # NOTE(gRPC Python Team): .close() is possible on a channel and should be
+    # used in circumstances in which the with statement does not fit the needs
+    # of the code.
+    with grpc.insecure_channel('localhost:50051') as channel:
+        stub = helloworld_pb2_grpc.GreeterStub(channel)
+        response, call = stub.SayHello.with_call(
+            helloworld_pb2.HelloRequest(name='you'),
+            metadata=(
+                ('initial-metadata-1', 'The value should be str'),
+                ('binary-metadata-bin',
+                 b'With -bin surffix, the value can be bytes'),
+                ('accesstoken', 'gRPC Python is great'),
+            ))
+
+    print("Greeter client received: " + response.message)
+    for key, value in call.trailing_metadata():
+        print('Greeter client received trailing metadata: key=%s value=%s' %
+              (key, value))
+
+
+if __name__ == '__main__':
+    logging.basicConfig()
+    run()